BMW’s legendary M1.
Every car model comes with unique physics and tire & suspension data, the physics are compatible to both RealFeel and LeoFFB. The cars feature plenty of historic liveries and richly-detailed cockpits & matching sounds.
In its heydey, the German Deutsche Rennsport Meisterschaft was one of the most popular national racing series that ever existed, featuring spectacular & powerful cars and legendary drivers like Hans Stuck, Klaus Ludwig, Hans Heyer, Rolf Stommelen & Bob Wollek.

I'm suprised there's so little interest in this mod here. I have a whole bunch of racing games installed on my pc (Dirt3, F1 2011, Shift2, pCARS, SimRaceway, even trialed iracing) yet I almost exclusively play rFactor and the DRM mod.

It's just awesome, easily the most fun I've ever had in a racing game or sim!!!